NUR 304 Exam 2 PQ Cardiac
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1. What area of the heart's electrical conduction is known as the "pacemaker"
of the heart?
A. SA node
B. AV node
C. Purknije Fibers
D. Bundle of His: a
2. What area of the heart is responsible for the delay of conduction between
the artria and ventricles?
A. AV node
B. Bundle of His
C. Bachmann's Bundle
D. Right bundle branch: a
3. True or False: Depolarization of the heart muscle is when the muscle con-
tracts and repolarization is when the heart muscle rests.: true
4. On an EKG the P-wave represents what area of the heart?
A. Left bundle branch
B. AV node
C. Bachmann's Bundle
D. SA node: d
5. What part of the heart's electrical system is known as the "gatekeeper"?
A. AV node
B. Gap Junction
C. Tetany
D. SA node: a
6. What area of the heart forms the PR segment on the EKG?
A. Purkinje fibers
B. AV node and Right and Left Bundles
C. Apex of heart
D. Bundle of His: b
7. What area of the heart forms the QRS part on an EKG?
A. Purkinje fibers
B. Left and right bundles
, NUR 304 Exam 2 PQ Cardiac
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C. AV node
D. SA node: a
8. A patient has a serum potassium level of 3.5 mEq/L, and is placed on a
cardiac monitor, and receives 40 mEq potassium chloride in 1000 ml of 5%
dextrose in water IV. Which of the following ECG patterns indicates that the
infusions should be discontinued?
a. Narrowed QRS complex
b. Shortened PR interval
c. Tall peaked T waves
d. Prominent U waves: c
9. A patient presents to the emergency department with sudden onset chest
pain radiating to the left arm and diaphoresis. Which of the following is the
most appropriate initial step in management?
a. Obtain an ECG
b. Administer nitroglycerin
c. Administer oxygen
d. Order a chest Xray: a
10. True or False: The SA node is located in the Left atrium.: false
11. What is the correct sequence of electrical conduction of the heart?
A. SA node, internodal pathways, AV node, Bundle of His, Right and Left
Bundle Branch, Purkinje fibers
B. AV node, internodal pathways, SA node, Bundle of His, Right and Left
Bundle Branch, Purkinje fibers
C. SA node, internodal pathways, AV node, Purkinje Fibers, Right and Left
Bundle Branch, Bundle of His
D. None of the options are correct: a
12. The myocardium receives its blood supply from what structure within the
body?
A. pulmonary arteries
B. superior vena cava
C. coronary arteries
D. pulmonary veins: c
, NUR 304 Exam 2 PQ Cardiac
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13. What vessel supplies parts of the electrical conduction system, SA and AV
node, in the heart with blood?
A. left anterior descending artery
B. right coronary artery
C. left pulmonary artery
D. left coronary artery: b
14. Which statement below best describes the term cardiac preload?
A. The pressure the ventricles stretch at the end of systole.
B. The amount the ventricles stretch at the end of diastole
C. The pressure the ventricles must work against to pump blood out of the
heart.
D. The strength of the myocardial cells to shorten with each beat.: b
15. Select the statement below that best describes cardiac afterload:
A. It's the volume amount that fills the ventricles at the end of diastole.
B. It's the volume the ventricles must work against to pump blood out of the
body.
C. It's the amount of blood the left ventricle pumps per beat.
D. It's the pressure the ventricles must work against to open the semilunar
valves so blood can be pumped out of the heart.: d
16. What two factors are used to calculate cardiac output? Select all that apply:
A. Heart rate
B. Blood pressure
C. Stroke volume
D. Mean arterial pressure: a,c
17. ___________ is the amount of blood pumped by the left ventricle with each
beat.
A. Cardiac output
B. Preload
C. Afterload
D. Stroke volume: d
18. Stroke volume plays an important part in cardiac output. Select all the
factors below that influence stroke volume:
, NUR 304 Exam 2 PQ Cardiac
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A. Heart rate
B. Preload
C. Contractility
D. Afterload
E. Blood pressure: b,c,d
19. Which treatments below would decrease cardiac preload? Select all that
apply:
A. IV fluid bolus
B. Norepinephrine
C. Nitroglycerin
D. Furosemide: c,d
20. What conditions below can result in an increased cardiac afterload? Select
all that apply:
A. Vasoconstriction
B. Aortic stenosis
C. Vasodilation
D. Dehydration
E. Pulmonary Hypertension: a,b,e
21. True or False: Pulmonary and systemic vascular resistance both play a role
with influencing cardiac afterload.: true
22. Which topics will the nurse plan to include in discharge teaching for a
patient who has been admitted with heart failure? Select all that apply.
a. How to monitor and record daily weight
b. Importance of stopping exercise if heart rate increases
c. Symptoms of worsening heart failure
d. Purpose of chronic antibiotic therapy
e. How to read food labels for sodium content
f. Date and time for follow-up appointments: a,c,e,f
23. The nurse is providing discharge education on fluid balance monitoring to
a client with a new diagnosis of right-sided heart failure. The nurse will stress
which priority instruction for monitoring fluid balance?
a. Weigh daily at the same time in similar clothing
Study online at https://quizlet.com/_ekcle5
1. What area of the heart's electrical conduction is known as the "pacemaker"
of the heart?
A. SA node
B. AV node
C. Purknije Fibers
D. Bundle of His: a
2. What area of the heart is responsible for the delay of conduction between
the artria and ventricles?
A. AV node
B. Bundle of His
C. Bachmann's Bundle
D. Right bundle branch: a
3. True or False: Depolarization of the heart muscle is when the muscle con-
tracts and repolarization is when the heart muscle rests.: true
4. On an EKG the P-wave represents what area of the heart?
A. Left bundle branch
B. AV node
C. Bachmann's Bundle
D. SA node: d
5. What part of the heart's electrical system is known as the "gatekeeper"?
A. AV node
B. Gap Junction
C. Tetany
D. SA node: a
6. What area of the heart forms the PR segment on the EKG?
A. Purkinje fibers
B. AV node and Right and Left Bundles
C. Apex of heart
D. Bundle of His: b
7. What area of the heart forms the QRS part on an EKG?
A. Purkinje fibers
B. Left and right bundles
, NUR 304 Exam 2 PQ Cardiac
Study online at https://quizlet.com/_ekcle5
C. AV node
D. SA node: a
8. A patient has a serum potassium level of 3.5 mEq/L, and is placed on a
cardiac monitor, and receives 40 mEq potassium chloride in 1000 ml of 5%
dextrose in water IV. Which of the following ECG patterns indicates that the
infusions should be discontinued?
a. Narrowed QRS complex
b. Shortened PR interval
c. Tall peaked T waves
d. Prominent U waves: c
9. A patient presents to the emergency department with sudden onset chest
pain radiating to the left arm and diaphoresis. Which of the following is the
most appropriate initial step in management?
a. Obtain an ECG
b. Administer nitroglycerin
c. Administer oxygen
d. Order a chest Xray: a
10. True or False: The SA node is located in the Left atrium.: false
11. What is the correct sequence of electrical conduction of the heart?
A. SA node, internodal pathways, AV node, Bundle of His, Right and Left
Bundle Branch, Purkinje fibers
B. AV node, internodal pathways, SA node, Bundle of His, Right and Left
Bundle Branch, Purkinje fibers
C. SA node, internodal pathways, AV node, Purkinje Fibers, Right and Left
Bundle Branch, Bundle of His
D. None of the options are correct: a
12. The myocardium receives its blood supply from what structure within the
body?
A. pulmonary arteries
B. superior vena cava
C. coronary arteries
D. pulmonary veins: c
, NUR 304 Exam 2 PQ Cardiac
Study online at https://quizlet.com/_ekcle5
13. What vessel supplies parts of the electrical conduction system, SA and AV
node, in the heart with blood?
A. left anterior descending artery
B. right coronary artery
C. left pulmonary artery
D. left coronary artery: b
14. Which statement below best describes the term cardiac preload?
A. The pressure the ventricles stretch at the end of systole.
B. The amount the ventricles stretch at the end of diastole
C. The pressure the ventricles must work against to pump blood out of the
heart.
D. The strength of the myocardial cells to shorten with each beat.: b
15. Select the statement below that best describes cardiac afterload:
A. It's the volume amount that fills the ventricles at the end of diastole.
B. It's the volume the ventricles must work against to pump blood out of the
body.
C. It's the amount of blood the left ventricle pumps per beat.
D. It's the pressure the ventricles must work against to open the semilunar
valves so blood can be pumped out of the heart.: d
16. What two factors are used to calculate cardiac output? Select all that apply:
A. Heart rate
B. Blood pressure
C. Stroke volume
D. Mean arterial pressure: a,c
17. ___________ is the amount of blood pumped by the left ventricle with each
beat.
A. Cardiac output
B. Preload
C. Afterload
D. Stroke volume: d
18. Stroke volume plays an important part in cardiac output. Select all the
factors below that influence stroke volume:
, NUR 304 Exam 2 PQ Cardiac
Study online at https://quizlet.com/_ekcle5
A. Heart rate
B. Preload
C. Contractility
D. Afterload
E. Blood pressure: b,c,d
19. Which treatments below would decrease cardiac preload? Select all that
apply:
A. IV fluid bolus
B. Norepinephrine
C. Nitroglycerin
D. Furosemide: c,d
20. What conditions below can result in an increased cardiac afterload? Select
all that apply:
A. Vasoconstriction
B. Aortic stenosis
C. Vasodilation
D. Dehydration
E. Pulmonary Hypertension: a,b,e
21. True or False: Pulmonary and systemic vascular resistance both play a role
with influencing cardiac afterload.: true
22. Which topics will the nurse plan to include in discharge teaching for a
patient who has been admitted with heart failure? Select all that apply.
a. How to monitor and record daily weight
b. Importance of stopping exercise if heart rate increases
c. Symptoms of worsening heart failure
d. Purpose of chronic antibiotic therapy
e. How to read food labels for sodium content
f. Date and time for follow-up appointments: a,c,e,f
23. The nurse is providing discharge education on fluid balance monitoring to
a client with a new diagnosis of right-sided heart failure. The nurse will stress
which priority instruction for monitoring fluid balance?
a. Weigh daily at the same time in similar clothing
